Brake



(No Model.) A 2 Sheets-Sheet 1..

C.ONSGORD.

BRAKE.

No. 528,019. Patented 0401;. 2s, 1894 TH: Norms PETERS ca.PHmmJ1'Nr1,wAsmNGToN4 n. c.-

(No Model.) 2 sheets-'sheet 2.

G. C.i ONSGORD.

BRAKE;

Patented 001;. 23, 1894..V

Wihysses NITED STATES cHRIsTnN o. oNsGoRD, or wnsT DULUTH, MINNESOTA.

BRAKE.

SPECIFICATION formingpart of Letters Patent No. 528,019, dated October.23, 1894.

i `.apparition inea 112.511.1894.

To aZZ whom/ imctyconoern:

Be it known that I, OHRISTEN C. ONsGoRD, a citizen of the United States,residing at West Duluth, in thecounty of St. Louis and State ofMinnesota, have Vinvented a new and useful Brake, `of=which thefollowing is a specitcation.` f i My invention relates to an improvementin that class of `railway brakes which are designed for use `on inclinedrailway cars; and the object sought to be attained is to provide anappliance whereby the brake will be automatically applied as soon as thecar or cars become in danger of racing. This end I attain by providingbrake mechanism which has a normal tendency to operate and which is heldinactive by a cable arranged to be broken when the accident tothedriving cable. takes place.

1n the accompanying drawings: Figure 1 represents a longitudinal sectionof a car supplied with my improvements; Fig. 2, a bottom p plan; Fig.3,a diagrammatical View illustrating the arrangement of cables and theirrelation to the brake; Fig. 4, a detail perspective of the rope-grip forthe safety-rope; Fig. 5, a cross-section of the machinetakenlongitudinally with oneof the axles. f i.

The reference numeral l'indicatesthe car, which maybe of any `preferredconstruction, and which is provided with the two revolving axles 2, towhich the wheels 3 are rigidly secured.

4. indicates the drive-cable, which is secured to the end of the car andby which the can is driven. This cable 4. has its remaining endconnected to a secondcar, as shown in Fig. 3, so that as the first carascends the incline the second car` will descend, and vice versa.

The cable et is connected, at a point between its ends to a mechanismfor applying power thereto, as will be understood and as indicated inFig. 3.

5 indicates the safety-cable which is one for each track and which `issecurely fastened to some stationary object at each end. The purpose ofthis cable 5 is to furnish a means for arresting the racing ofthe carswhenthe cable 4. breaks, as suchcable oftenldoes.

Secured to the under side of the car 1, and

Serial No. 509.680. `(No model.)` p

at each end thereof, are the frames 6, which project downwardlyandthence horizontally and are braced by the rods 7. Rigidly secured to theupperside of the horizontal portion of the frames 6, and at about themiddle thereof, are the cable-gri ps 8, which Vconsist of a base-platehaving the rollers 9 ateach end and the side plates 10 arising one fromeach side. The side-plates 10 are formed with an arch 11 attheir upperends, and these `arches are formed with internally-threaded openings 12,through which the threade shafts 13 extend.

The shafts 13 have their lower ends revolubly connected to the shoes14., which are arranged between the side-plates 10, and

movable vertically therein toward and from the base-plate. der theshoe14, the rope 5 is adapted to pass,

Over the base-plate andi unand when the shoes are raised the car will beallowed free movement on the cable. The shafts 13 extend vertically fromthe grips S and through theiooringof the car, and have their upper endsprovided with the operating-` wheels 15, by which they may be turned andthe shoesmade to engage the cable 5. `This will result in a connectionbetween the two parts and a consequent stopping of the car.

Rigidly secured to one of the shafts 13, at a pointbelow the fiooring ofthe car, is the pulley 16, which is grooved on its periphery and adaptedfor the passage of the rope 17. The rope 17 is wrapped around the pulley16 twice, and is then passed over the idler 18 and around the drum 19,which is loosely` mounted on one of the axles 2. The drum 19 is heldincapable oflateral movement by means of the pin 20, and washer 21, andby means ofthe collar 22, formed integral with or rigidly secured to theaxle. This drum is formedby preference, of two sections bolted adaptedto receive the longitudinal rib 29 of the axle upon which the clutch ismounted,

30 is loosely mounted in place and lis formed of two sections, as arethe companion devices.

Rigidly secured to the collar 30 are the forked arms 31 of the lever 32,which lever is fulcrumed to the pin 33, fixed, in turn, to the plate 34.The plate 34 is rigidly'secured to 'the framework of the car, as shownin the drawings. Mounted on the axle having the above-described clutchmechanism is the spiral spring 35, which is held against the clutch 27by means of the pin fand collar 36,

and has a collar 37 at its remaining end.'

This latter collar is pressedagainst fthe clutch 27, thereby giving it atendency toward the i drum 1.9.

The lever 32 has its `free end bent latereral'ly and connected to thecable 38, which i passes between the pulleys 39-of Ythe beam 40, wherebyupon pulling on the cable '38 the lever will be swung on its fulcrum soas to i into engagement with the rope 5, for a purpose that will be morefully described here- Connected to Athe cable 38 is the -reinafter.tractile spiral spring-41, and this Ahas its remaining-end connected to4the small'cab'le 42,

which proceeds along parallel with the/cable 4, and isconnected a-t itsremaining end to mechanism similar to that-just described and arrangedon the carto which the remaining i will engage the dr-um and `cause thegrip to end of lthe lcable 4 is connected.

By reference t-o the drawings, particularly Fig. 3 the operation vof myinvention may be traced as follows: Supposing that the cars are beingpropelled by the power -in conneci tion with the rope 4, and that therope l4 breaks.

cline. As soon as such movement is begun, however, the cable 42 will besubjected to unduestrain, which will resul-'t i-n its fracture, f

and Aa consequent release of the lever 32, al-

lowing the clutch 27 and drum 19'to engage.

This will cause the rope 17 to operate, and in so doing revolve theshaft 13, to ywhich it "is connected. .As the shaft 13 revolves, 'theThis wil-l revolve the pulley of vthel This would release them and makeiit possible for them to race vdown the ini be kept taut, andconsequently in engagement. The purpose of the spring 41 is to give thecable 42 a limited amount of elasticity, so that the usual jars andjerks attending the movement of the cars will not break it.

While I have described my invention as applied to a double-track system,it will be seen that its use is not so limited, since it could be usedwith equal vfacility on a single track, by connecting the cable 42 to adrum winding inruuison with the winding mechanism of the cable 4.

Having described my invention, what I claim is 1. The combination of acar, a propelling cable connected thereto, astationarycable by which/theIcar passes, -a grip on the car 4and roperating in connection ywith thestationary cable, said .grip being connected with a drum mounted on thecar-axle, a clutch for fixing the drum to the axle and having a normaltendencyT toward the drum, and a third cable connected to the clutchfand operating'to hold it yout of engagement with the drum,theklastnamed cable being adapted, upon the break1 ing :of Athe propellingcablato break and release the clutch, thereby operating lthe :grip tobind with the stationary cable andstop the car, substantially asdescribed.

A2. The'combinationlof a car, a propelling cable connected thereto, agrip fon the car,:a stationary cable passing through the grip, a drummounted loosely on one of thefcar-faxles, a clutch fixed to the faXleand having a niormal tendency to engage the drum, a bent le1 verconnected to the clutch, a cable connected to the lever and adapted 'tokhold the clutch from engagement with the drum, and ya belt connectingthe ldrum and lgrip whereby `when the last-named v'cable is broken, uponthe breaking `of the propellfingcable, the clutch lon an inclined plane,a propelling rope iconnected to each at yits ends, a grip -on veach car,

,a `stationary rope for-each grip, means ,for applying lthe grip, saidmeans having a normal tendency to operate, and a third :cable 'connectedto each car-and operating to holdfsaid means inactive, whereby upon thebreaking of the propelling cable the third cable will break also a-ndallow the grip 'tobind -with the stationary cable, thereby stopping thecar, substantially as described.

4. The combination of a car, a framefdependingtherefrom, athreaded-shaft arranged above the frame, a gripshoe on the vsha-ft andadapted to bind ragainst the iframe, astationary rope passing betweenthe frame and the shoe, a drum mountedloosely on the car-axle, abeltpassing over the drum and shaft, whereby the shaft is operated, a clutchfixed to the shaft and having a normal tendency to en- IOO IIO

gage the drum, a cable connected tothe clutch and operating to hold thesame from engagement with the drum, a propelling cable connected to thecar, whereby upon the break ing of the propelling cable the clutch-cablewill break and allow the drum to operate the shoe, thus gripping thestationary cable and stopping the oar, substantially as described.

In tectimony that I claim the foregoing'` as my own I have hereto a'ixedmy signature 1n xo the presence of two Witnesses.

CHRIS'IEN C. ONSGORD.

Witn esses:

HARVEY P. SMITH,

S. E. PETERSON.

